09,22,2026 13 views
How to choose correctlyRosemount transmitter
1. Confirm the working environment and other conditions on site: it is necessary to understand whether there is vibration and electromagnetic interference, and provide relevant information when selecting, so as to take corresponding measures. When selecting, other factors such as electrical connection methods can also be considered according to the situation.
2. Confirm the pressure range: Generally, select 80% of the measurement range based on the actual measured pressure.
3. Confirm power supply and output signal: DC power supply is used, providing multiple output signal options, including 4-20mA, 0-5VDC, 1-5VDC, 0-10mA, and 232 or 485 digital output.
4. Confirm the overload of the system: The overload of the system should be less than the overload protection limit of the transmitter, otherwise it will affect the service life of the product and even damage the product.
5. Confirm accuracy level: The measurement error of the transmitter is divided according to the accuracy level, and different accuracies correspond to different basic error limits (expressed as a percentage of full-scale output). In practical applications, the selection should be based on the control requirements of measurement errors and the principle of economic use.
6. Confirm working temperature range: The measured medium temperature should be within the working temperature range of the transmitter. If used beyond the temperature limit, it will cause significant measurement errors and affect the service life; In the production process of pressure transmitters, temperature effects are measured and compensated to ensure that the measurement errors caused by temperature effects on the product are within the required accuracy level. In high-temperature environments, it is advisable to consider using high-temperature pressure transmitters or implementing auxiliary cooling measures such as installing condenser tubes and radiators.
7. Confirm the compatibility between the measuring medium and the contact material: In some measuring situations, the measuring medium is corrosive. In this case, materials compatible with the measuring medium should be selected or special processing should be carried out to ensure that the transmitter is not damaged.
8. Confirm the form of pressure interface: The product adopts threaded connection (M20 × 1.5) as the scale interface form. If the customer requires other special interface forms, they can design and produce according to customer requirements.
9. Confirm the measurement pressure introduction: According to the different measurement media, it can be divided into dry gas, gas liquid, strong decorative liquid, viscous liquid, high-temperature gas liquid, etc. Accurately selecting according to different media is beneficial for extending the service life of the product.
10. A high-quality pressure transmitter is the prerequisite and guarantee for accurate measurement results
